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The situation when websites do not open on a computer in a browser is quite unpleasant, but sometimes it still happens. With all this, all other programs that require Internet access, for example, Skype or torrent clients, work properly. Don't despair, because solving this problem is not very difficult and will take a little time. There are several alternative solutions to fix the problem:

• check the settings of the browsers installed on the system;
• editing the Windows registry;
• search for malware (viruses and Trojans);
• fixing the hosts file;
• Domain Name System (DNS) fix.

First of all, you need to check your computer for viruses. This can be done by any antivirus program. Choosing an antivirus is a matter of taste for each user, so it is difficult to give definite advice. Almost all antiviruses correctly detect the most common viruses and remove them.

After the malicious software has been removed, you need to check whether there is a response from the site or whether the server is truly temporarily unavailable. To do this, you need to run the ping service command with parameters on the command line. The command is typed in the following format:

ping eg ping google.com

If a response is received from the site, then There is an Internet connection but the pages do not load, you need to make some adjustments.

Windows Registry Fix

To start the registry, run the regedit.exe command. This is done through the menu “Start - Run - regedit”. Next you need to go to the branch HKLM (HKEY_LOCAL_MACHINE) - Software - Microsoft - Windows NT - Current Virsion - Windows.

Along this path there are several parameters, the one that is interesting to us is called AppInit_DLLs. If the parameter value contains a path to a program or DLL resource, you need to delete it. To do this, call the context menu with the right mouse button on the parameter and select the “Change” item. A window will open in which you need to select the value and save or remember its path, and delete the value itself. After this, close the registry and delete the file along the path that was written in the value line. After rebooting your computer, you can try opening pages.

There are times when the AppInit_DLLs entry is missing from the registry. This is a normal phenomenon; in this case, you just need to look for a solution to the problem in a different way.

Setting up DNS router and computer

In the case when there is an Internet connection but browsers do not work, and a message appears in the browser stating that it is impossible to convert the DNS address of the server, you just need to enter everything manually. In Windows this is done as follows:

• through the “Control Panel” you need to open the “Network and Sharing Center”;
• In the menu on the left side, select “Change adapter settings”;
• a list of adapters will be displayed in the window that opens. Through which Internet access occurs;
• the active adapter is selected and its properties are called up;
• The adapter properties window will be displayed, where you need to click on the “Internet Protocol version 4 (TCP/IPv4)” item and click the properties button;
• Next, set the switch to “Use the following DNS server addresses” and enter 8.8.8.8 as the preferred address, and 8.8.4.4 as an alternative (these are Google server addresses).

After restarting the computer, you must also check the DNS settings of the router. The settings pages for routers are different, but usually the addresses are written on the “Network” or “WAN” tab. If the settings are in automatic mode, then you need to check the box and enter the same server addresses that were previously entered on the computer. After all, the settings are saved and the router is rebooted.

Correcting the Hosts file

This file is used to convert domain names to network IP addresses, and vice versa. The file is located at "%SystemRoot%\system32\drivers\etc\hosts" and has no extension. It must be opened as a text file and only with administrator rights. By default it should contain only one entry: 127.0.0.1 localhost. All other lines must be commented out or may be completely absent. During the installation of programs, some of them add their entries to this file, after which problems with the network may arise. If hosts contains other entries, they must be deleted.

You can restore this file in another way - using the AVZ program, which is completely free. It has the ability to restore system parameters. This is done through the menu “File - System Restore” and select the items that need to be restored there. Naturally, it is launched from the system administrator.

There are times when there are Internet connection but internet does not work, and only some sites do not open, for example, they are blocked at the legislative level, then the solution may be to use VPN servers. There are many offers, both free and paid, and a lot of plugins for various browsers and programs for mobile devices.

These are all the main solutions when pages do not open in the browser, and if nothing helps, then it is best to seek help from professionals or reinstall the system.

Today I want to talk about a problem that often occurs among novice users who have relatively recently connected to the global network and have not yet gotten the hang of it. There is, however, another category that can use something for years and not delve into the subtleties. But sooner or later problems may arise and you still have to figure it out. The essence of the problem is that at one point the user notices that the browser does not open sites and pages, but the Internet works - Skype, ICQ, Viber function perfectly. It is clear that contacting the provider’s technical support will also not yield any results - faults with the communication channel will not be detected. What to do in this situation? The only reason that the Internet works but sites do not open is problems with DNS. But the primary sources can be several factors. Here are the three most important:

3. Problems with the Windows DNS client

Let's take a closer look at them.

Invalid DNS address or server unavailable

Among ordinary ordinary consumers of broadband access services, few people know what DNS is and why it is needed. Even less think about which server to register. In fact, this is a serious point, on the correct configuration of which normal, convenient and comfortable work on the Internet entirely depends. In short, Domen Name System - abbreviated as: DNS is a special hierarchical domain name system, thanks to which a computer or laptop receives the information it needs about the site the user is accessing, namely the IP address of the node on which this or that is located resource or portal. It works on the basis of special servers that are installed at each level of the system hierarchy. Each more or less large provider has its own DNS server and more than one. Usually, its address is given to subscribers automatically when they connect to the network and then they work quietly. But it may happen that the user messes with the connection settings, or the provider’s DNS server begins to shut down. Carrying out basic diagnostics is not difficult - all tools are available in the basic Windows set. Open a command prompt with administrator rights.

In the black console window that appears, enter the command:

Press the Enter button and wait for the result. Here is an example of the normal execution of such a request for Yandex:

If there are any problems with the server, then it will either display that the request timeout exceeds, or “No response from the server”:

Accordingly, in this situation, browsers do not work and cannot open pages. At the same time, those services that access the Internet directly via IP address will function perfectly. In this case, it’s worth trying to send the same request to some third-party service. For example, public DNS from Google is 8.8.8.8. Then the command will look like this:

If the correct result is obtained and the utility does not generate an error, enter the addresses of public servers in the settings of the network card of your computer or laptop. To do this, open the Windows 10 settings:

Go to the “Network and Internet” section. In the menu that opens on the left, select the connection type: Ethernet (as in my example) or WiFi:

Note: If you have Windows 7, 8 and 8.1, then in order to open network connections, press the Win+R key combination, enter the command ncpa.cpl and press the Enter key,

Now you need to find the connection through which Internet access is organized and right-click on it. In the context menu, select “Properties”. In the window that appears, double-click on the item “IP version 4 (TCP/IPv4)” to get to the protocol parameters:

Here you need to check the “Use the following DNS server addresses” checkbox so that the fields below become active. We indicate the Google server as the preferred one - 8.8.8.8, and the alternative will be the analogue from Yandex - 77.88.8.8. Save the settings and check the result.

DNS service is blocked by security system

Manufacturers of anti-virus and security software sometimes endow their products with an overly zealous analysis system. It happens that at the first suspicion of malicious activity, a packet filter (also known as a firewall or firewall) blocks the TCP or UDP port 53 being used, or even the entire application that tried to send the suspicious packet. As a result, the Internet works without problems, and at the same time the browser does not load pages.

To rule out this scenario, try deactivating your computer's security system for a while for testing. To do this, go to its settings, find either a global toggle for protection activities, as in the screenshot above, or a separate one for the firewall or firewall and turn it to the “Off” position. After that, launch the browser and check whether the pages open or not. If the cause is really an antivirus, you need to conduct an analysis and find the reason why the DNS is blocked. I think it makes sense to conduct a full scan of Windows for the possible presence of viruses or hidden malicious modules using another anti-virus utility.

Windows DNS Client service does not work correctly

On an old operating system that has been on a computer or laptop for some time, the reason for strange behavior when the Internet works and sites do not open may be that the Windows 10 DNS client is not functioning correctly, or the service does not start at all. Right-click on the computer icon on the desktop:

In the menu, select “Management” and open the “Computer Management” system snap-in. In it you need to find and select the “Services” section:

On the right, in the list of services we find the DNS client and look at its status. If it says “Running,” then try restarting the service by clicking on the corresponding link in the upper right corner. If the service is not running, then this is precisely the reason why pages do not open in the browser. Right-click on the service so that a menu appears and select “Run”. Let's check if the browsers are working or not.

If all else fails: Before moving on to drastic methods such as reinstalling the system, try accessing the Internet from another device connected in the same way as your computer. If such a problem does not arise there, its source clearly lies in the PC settings. If you are working through a router, try switching to a neighboring port. It is possible to connect via WiFi - try this option to eliminate the possibility of problems at the device driver level.

nastroisam.ru

The Internet works but browsers do not open pages

This can happen when DNS is not specified in the computer's network settings. Either it is listed incorrectly or is no longer available. It is in this case that you will see that messengers such as Skype or Mail.ru Agent remain connected, as indicated by the tray icon.

The Internet works but the browser does not load pages

You can even correspond with users via instant messengers, but the browser will not load web pages. In the slang of IT specialists they say about this problem - “addresses do not resolve.”

Resolve, resolve, resolve - from the English term RESOLVE - decide, resolve. In the context of network technologies, we also talk about domain name resolution. Sometimes you can see the following literal translation of this error: Temporary failure in name resolution - “Temporary failure in name resolution.” When they say “does not resolve”, this means that the computer, or any other network device, cannot match the domain name entered by the user, i.e. website address with its network unique IP address.

Simply put, your computer does not know where exactly on the network the server hosting this site is located. In order for the browser to be able to open pages, the site address (domain name) must resolve to the IP address of the server that hosts the requested resource. In order for this to happen, there are DNS servers - a kind of decentralized, but closely interconnected databases that store the correspondence of domain names to IP addresses. The network settings usually indicate the nearest or any other available DNS. When you try to open a site by name, the network device first requests its IP address from this same DNS, since it can access and download data only knowing this very address. There is a little more detail on this topic in the article where I described ways to find out the IP address of a site - http://answit.com/kak-uznat-ip-domena-ili-sayta/

How to check and clarify whether the problem is in DNS?

Very simple. All you need to do is open the command line and ping the address of the desired site, or better yet any other site, the functionality of which you can always be sure of. For example:

If you get something like this in response:

The ping failed to detect the google.com node. Check the hostname and try again.

This means that the problem may be the unavailability of DNS.

How to check DNS operation

Then try ping some IP address you know. I myself almost always use and recommend that you use the address 8.8.8.8 - it is easy to remember and ideal for testing and identifying network problems. This is Google's public DNS. If it pings you, but browsers do not want to open pages, then there is definitely a problem in the DNS settings of your network interface. As I already wrote above, the DNS you specified could simply stop working. As eights, you can use any other global IP address, if you know one, of course. Including any other public DNS server.

How to fix pages not opening in the browser?

If, when testing using the method described in the previous paragraph, you see a similar picture, just specify the working and accessible DNS in the network settings. The simplest way is if “eights” are available, specify them as the DNS server.

Network interface settings

Other causes of page loading problems in browsers.

Of course, there are others. And there can be many of them. The second of the common ones is that you are on a local network and your computer is simply restricted from accessing the Internet via http (https). In this case, they talk about closed ports and limited access. This is usually done on the gateway, using some kind of proxy server. If access is denied only for http traffic, then you will see a similar picture - instant messengers may work, ping may work, that is, all the signs will indicate that the Internet is working, but the browser does not open pages.

In such a situation, you just need to contact your network administrators and they will either give you access or explain that you are not allowed to go online during business hours :)

answit.com

7 reasons and ways to fix the problem if sites do not open

Problems with opening web pages through a browser are common and can cause difficulties even for an experienced user.

Symptoms of malfunction

Conventionally, the problem can be divided into several possible options:

The Internet connection is present, applications for online communication, cloud data storage, torrent clients and other utilities that use data transfer via a web connection work stably, but not a single browser opens a single page;

There is a constant connection to the Internet, programs that interact with it work correctly, web pages are available in one or more browsers, but at the same time do not open in other Internet browsers (see Which browser for Windows 10 is better);

Browsers operate normally, but do not go to certain sites (for example, web resources of antivirus program developers, popular search services or social networks).

In most cases, such a malfunction occurs due to the presence of malicious programs on the device, namely due to their interference with the operation of browsers and the operating system. At the same time, eliminating viruses using special utilities does not always correct the situation, since unwanted changes that interfere with normal operation are saved (see How to test your computer for viruses online).

In addition, access to some web resources may be intentionally or accidentally blocked by an antivirus application or a firewall built into the OS.

If we consider a situation where some sites do not load on computers located in the office of an organization, the reason may be intentional blocking through the use of a proxy server, and in some cases, network administration and programs specially designed for this purpose.

What to do

At the first stage of diagnosing and finding a solution to the problem, simple causes of the malfunction should be excluded, namely:

• lack of internet connection;
• unpaid invoice for the use of services provided by the provider;
• incorrect configuration of the router or operating system (see How to choose a WiFi router);
• hardware conflict between a network device and other equipment.

Ways to solve such situations will not be considered here, since they all imply a complete lack of Internet connection. The problem, the solutions to which are given in this article, is the inability to load only certain or any web pages through one or several browsers at once, provided that there is an active Internet connection.

In addition, before solving the problem, you should make sure that the device is not infected with viruses.

Changing the registry if sites do not open

This method helps solve the problem in 80% of cases. To implement it you need:

1. 1. hold down the Win+R keys, paste regedit into the line of the appeared window and press Enter;

1. 1. when a notification appears, confirm the launch of the registry editor by pressing the “Yes” button;
   2. a program window will open, where on the left side follow the route HKEY_LOCAL_MACHINE?SOFTWARE?Microsoft?Windows NT?CurrentVersion?Windows;
   3. after that, the parametric data, their types and set values ​​will be displayed in the right section of the window, where you need to find the line named AppInit_DLLs and look at its value;
   4. if any value is present, call the context menu on it and click “Change value”;

1. in the window that opens, clear the corresponding line and click OK;
2. then you should again go to the left side of the program window, go to the very top, follow the route HKEY_CURRENT_USER SOFTWARE?Microsoft?Windows NT?CurrentVersion?Windows, and then do the steps described above again (in Windows 10 AppInit_DLLs may not be present in this registry branch);

Finally, you need to restart the computer.

Damaged TSP/IP protocols

Another factor that causes the system to malfunction is damage to the TSP/IP protocols. To eliminate this problem, you should reset the parameters of network data transfer protocols (see How to change the IP address of your computer).

TSP/IP reset process:

1. press Win+R;
2. in the window that appears, execute netsh winsock reset and then netsh int ip reset;
3. reboot the operating system.
4. Can't open via HTTPS or certificate error
5. When navigating to secure sites that use the HTTPS protocol, which supports data encryption, a security certificate error may occur.

A similar error occurs in 3 cases:

1. web resource is potentially dangerous;
2. the date and time on the device are set incorrectly;
3. The security certificate assigned to the web resource is not entered into the browser database.

To fix the problem, the first step is to check that the time and date set on the device are correct. In most cases, this is what causes a certificate error to occur.

If the date settings are incorrect, use the instructions below depending on your OS version.

For Windows 10:

1. click “Date and time settings”;
2. activate the “Set time automatically” and “Set time zone automatically” options.

For Windows version 8/8.1:

1. in the tray, click on the icon that displays the current time and date;
2. click “Change date and time settings”;
3. in the window that opens, go to the “Internet time” tab and click the “Change settings” button;
4. in the window that appears, click on the “Update now” button, and then click OK.

If after this the web resource continues to give an error, you need to find the icon in the browser’s address bar that shows a padlock and click on it. Information about the resource, its owner, and other data will appear. Compare the information you receive with what you know about the site.

If you are sure that the resource is secure, click on the “View Certificates” button and then “Install Certificates”. After this, the page will become available.

DNS error when sites do not open

As a rule, it is accompanied by the message: “The DNS address of the server cannot be resolved,” which is displayed in the Internet browser window.

There are several ways to solve the problem, let's look at each of them.

Clear DNS cache

The “Run” application built into the operating system starts. The fastest option is to press the Win+R button combination. Then you need to enter ipconfig /flushdns into the program line and click OK.

Manually entering a DNS server

Instructions:

1. start the built-in Run service and enter ncpa.cpl;
2. select the current method of connecting to the network and call the context menu;
3. activate “Properties”;
4. find “Internet Protocol Version 4 (TCP/IPv4)” and double-click on it;
5. In the new window that appears, enter the addresses of the DNS servers from Google and Yandex - 8.8.4.4 and 77.88.8.8, and then click OK.

Checking the operation of the DNS client

Instructions:

1. Start the Run service and activate the services.msc command;
2. in the window that opens, on the right side, find the line “DNS client” and double-click on it;
3. make sure that the service is running, otherwise click the corresponding button.

Hosts – a file containing a database of IP addresses and names of identification areas. This text file, stored in the depths of the OS, is actively used by virus programs, as well as system administrators to block access to certain resources.

In order to find the hosts file, you need to follow the route: This computer? Drive C? Windows? System32? Drivers? etc.

You can open the file using the built-in Notepad application.

For Windows OS, the hosts file should only contain the lines shown in the image below.

The additional lines contained in the file should be removed and then the changes saved.

1. copy the text from the current hosts file and then rename it (for example, hosts.old):
2. create a new text document using Notepad and paste text from the clipboard;
3. remove the extra lines and save it under the name hosts in the folder where the old version of the file is located.

The site does not open from the phone

To solve a problem with your phone, you should first check the gadget for viruses.

If the problem persists after running antivirus applications, the easiest solution is to reset the phone to factory settings. This method removes any changes made by malware to the operating system.

If for some reason the settings cannot be reset, then you should check the hosts file (in Android OS you need to go through the system?etc?hosts route using the file manager).

Errors 403,105,101, 500, 502

To complete the picture, it will be useful to understand what the common errors displayed in the browser window mean.

Read also:

• 7 services for extracting music from videos For editing and editing your own videos. Don’t waste time searching for the source - immediately “get” the song or voiceover using online services or special programs. For […]
• Review of Yandex Disk features and problem solving The Yandex Disk application offers 10 GB of free space after installation. Subsequent gigabytes must be purchased separately. According to the tariffs, for 10 GB the developer asks 30 rubles, 100 GB – 80 rubles, 1TB […]

pchelp.one

Some sites do not open in the browser through the router. What to do?

In this article we will look at solutions to the problem when some sites do not open on the computer. A popular problem that often appears when connecting via a router, Wi-Fi, or cable. In principle, the connection method is not important. The result is always the same - some pages in the browser simply stopped opening. Many people experience this problem when connecting to a new network, after installing a router, or simply at some point.

I also noticed that most often search engines (Yandex, Google, and all their services), social networks (VKontakte, Facebook, Odnoklassn), and other popular networks stop opening. It doesn’t matter, the main thing is that access to some site has been lost, and this problem needs to be fixed. In fact, there are many reasons why some sites do not open. The problem can be either in the computer itself or in the router (if the Internet is connected through it).

When you cannot get to a certain site, but other sites open normally, then in any case some kind of error or message appears in your browser. Most likely, the site takes a long time to load, and the “Page Unavailable” error appears (ERR_ TIMED_OUT, ERR_CONNECTION_ CLOSED). It all depends on the browser and the reason why there is no access to the site.

At the same time, the Internet is connected, programs like Skype work, and other pages open perfectly. In some cases, not a single site opens.

Pay attention to the message that appears when you try to open the desired page. Perhaps the Internet provider itself has limited access to the site you want to access. In this case, there will be a message that access is closed or limited. The site is blocked.

Also, very often antiviruses and firewalls block sites that are in their database of malicious sites. In this case, it will also not be difficult to guess that the address is blocked by an antivirus. There will be a logo and description. If you still want to access the site, you need to disable the antivirus, or add the address to the firewall exceptions. It's not always safe. The browsers themselves can also block malicious sites.

If everything opened fine before, then remember what you did before the problem appeared. Maybe they changed some settings or installed programs. Very often, after installing some programs, problems appear with access to sites.

Reasons why some sites most often do not open

I'll start with the most popular, in my opinion. Let's look at the solutions in the same order.

• Due to problems with DNS addresses.
• Pages may not open due to problems in the hosts file.
• The TCP/IP protocol has failed.
• Viruses and malware.
• Incorrect values ​​in the Windows registry.
• Some sites may not open due to an incorrect MTU value.

No access to some sites: change DNS addresses

According to my observations, some pages most often do not open precisely because of problems with DNS addresses. As a rule, the Internet service provider issues DNS automatically. I advise you to set static DNS addresses. Now I will show you how to do this in Windows 7, Windows 8 and Windows 10. You can also change these addresses on mobile devices, or in the settings of your Wi-Fi router.

Right-click on the Internet connection icon (in the tray), and select Network and Sharing Center. Next, select Change adapter settings.

Right-click on the adapter through which you are connected to the Internet and select Properties. If the Internet is via Wi-Fi, then this is a Wireless network connection. And if via cable, then Connect via local network (Ethernet in Windows 10). Highlight Internet Protocol Version 4 (TCP/IPv4), and click the properties button. Select the radio button next to Use the following DNS server addresses, and specify the following addresses: 8.8.8.8, 8.8.4.4 (as in the screenshot below). Click Ok.

Reboot the computer and check the operation.

Check the hosts file if pages do not open in the browser

The hosts file in Windows is truly a weak point. Many viruses make changes to the hosts file without problems. And if you enter website addresses in this file, they will stop opening. Therefore, we need to check and, if necessary, clean the hosts file. Often in the hosts file you can see the registered addresses of the sites vk.com, ok.ru, etc. They should not be there.

Go to C:\Windows\System32\drivers\etc, open the hosts file, and select Notepad to view. A standard, clean file looks something like this:

If you see any third-party website addresses there that you cannot open, then you need to delete them. Or copy the standard contents of the hosts file and replace the contents of your file with it. You can also download a ready-made, clean file and simply replace it. I will write in more detail about working with the hosts file in a separate instruction.

Resetting the TCP/IP protocol settings

Another tip is to reset the TCP/IP protocol parameters. We do this: press the Win+R key combination, enter the command cmd and press Ok.

A command prompt will open. Copy and paste the command into it:

netsh winsock reset

Press Enter to execute it. The following result should appear:

We restart the computer and try to open sites that you did not open.

Viruses and malware can block access to websites

There are many viruses that prevent access to certain sites. They usually do this through the same hosts file, registry entries, or changing TCP/IP parameters. If you suspect that problems with opening some sites are due to a virus, then be sure to check your computer. You can do this with an installed antivirus (if you have one, if not, install it). Also, I would recommend checking the system with the AVZ utility, or Dr.Web CureIt (or better yet, both).

The exact same problem may appear after installing some programs. Basically, these are programs that allow you to download videos and music from social networks (VKontakte, Odnoklassniki, etc.). Just remove these programs and check your computer for viruses.

You can also try opening the site from a different browser. Install the latest version of the browser Opera, Chrome, etc.

Websites won't open - check the Windows registry

Press the Win+R key combination, enter the command regedit, and click Ok.

The Windows Registry Editor will open. Go to: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows. There will be an Applnit_DLLs parameter. If there is no value opposite it, then everything is fine. If some value is set there, then right-click on Applnit_DLLs and select edit.

Remove the value and click Ok.

You can also go to the address specified in the “Value” field and delete the file.

Checking and changing the MTU parameter

There is such a parameter as MTU. I won’t tell you now what it is and why it is needed. But, if this parameter is set incorrectly, then some sites simply do not open in the browser. Or they open not quite correctly, not completely.

If you are connected via a router, then change the MTU in the router settings, on the page with Internet connection settings. There is definitely such a point there. You can check with your Internet provider what value to indicate there. Or, just experiment. By default, the router settings most likely indicate the value 1500 (it changes depending on what type of Internet connection the provider uses). You can try changing it to 1460, or 1420. If you have Internet via a 3G USB modem, then install 1476.

This is how the MTU changes on a Tp-Link router:

Conclusion

There are many solutions, some are helped by changing DNS, others by clearing the hosts file, or something else. We need to try, don’t give up, and victory will be ours :)

I think that after these steps, you were able to access a site that had not opened before. Share your results in the comments and write what helped. Ask questions, I will try to help.

help-wifi.com

Websites won't open in your browser? And the Internet works!

Friends, lately I have received a lot of letters from you with one problem: many of you do not open the sites of several well-known social networks at once: Odnoklassniki, VKontakte, as well as the sites www.youtube.com, ru.opera. com, mail.ru.

This topic is quite serious. The point here, of course, is a virus that is located in your system and, unfortunately, not always in the same place, and its actions are not always equally predictable. Therefore, even in service centers they don’t like to deal with this problem and will simply offer you to reinstall the operating system, and of course this option is not for you and me. Our article tells you how to find and remove malware. It’s certainly not a panacea, but I’m sure some of what is said below will be useful to you. The article turned out to be long and it describes in detail a real case of malware removal. It is written in simple and accessible language, so that even a beginner and inexperienced user in computer matters will understand everything. With respect to you, admin.

Websites won't open

Letter from a reader. From the beginning I didn’t want to write to you, I thought I’d sort out my problem myself. I don’t consider myself an inexperienced user; on the contrary, I’m used to always figuring out all the problems on my own and sometimes helping others. All my friends know about this and often ask me for help in solving one or another computer-related problem, but lately I haven’t been able to solve one problem. My friends have a problem - sites do not open, and the last case is quite interesting, when they try to open such resources as Odnoklassniki, VKontakte, www.youtube.com, ru.opera.com, mail.ru and even microsoft.com with any browser /ru, a page appears with an external design similar to the above sites, but with the following message:

A threat has been detected and the browser has detected attempts to make changes to its operation. To prevent theft of confidential information, passwords and finances on electronic systems, we recommend immediately installing the latest browser security update. To start updating, confirm your agreement with the rules. Enter your phone number. A free SMS with a code will be sent to this phone number, which you will need to enter next.

Just for fun, I entered my phone number and clicked Confirm, immediately a code of several numbers came to the phone and the following information - To confirm the payment, send a number... And a fool understands, if I send this number now, then I will confirm the payment and the scammers will withdraw from my phone all the money.

This problem has been discussed on the Internet for a long time, but the answer to this question is basically standard for such situations: Fix the hosts file, check the computer for the presence of malware. I checked my computer for viruses with anti-virus disks from two manufacturers, unfortunately this did not bring any effect, but with the hosts file a rather interesting situation arises. In the folder where it should be located

C:\windows\system32\drivers\etc\ it’s simply not there, I don’t understand how this could be, the display of hidden files and folders in the system is enabled, I also unchecked the Hide protected system files option. I created the hosts file again, but the sites still do not open. By the way, one time I came across two hosts files, imagine, I then simply reinstalled the operating system.

Well, now I have a question for you, what to do when sites do not open and where to look for a virus, what to do if the hosts file or two of them are missing? If you can write everything step by step, many people will be grateful to you, I’m sure. Andrey.

Note: If you have recently encountered problems with the operation of sites, then first of all apply a rollback using a system restore to one or two days ago, this should help. In most cases, a full scan of your operating system with your own antivirus, as well as the Dr.Web CureIt antivirus utility, or you can boot from an antivirus disk, will help. Recently, the wonderful anti-virus utility Kaspersky Virus Removal Tool (I recommend) has helped me a lot in dealing with this problem. You also need to clear your browser cache.

Or read on, it will be interesting. Before taking any action, I advise you to create a system restore point or a backup of the entire system disk; if something goes wrong, you can roll back at any time. I would like to give you some advice, friends, to avoid getting into such situations, of course you should have a good anti-virus program installed and of course it should be constantly updated. Also, to help your antivirus program, install a good startup manager. When it comes to choosing an operating system, it is advisable to prefer Windows 7 64-bit or Windows 8 64-bit, since 64-bit systems are more secure, and of course you must have updates enabled.

Recently an acquaintance called me and asked: “Listen, old man, why do you think my sites won’t open: Odnoklassniki, VKontakte, mail.ru and so on, I wanted to reinstall Opera, but I couldn’t download the new version of the browser, I went to them I can’t get to the official website, can you imagine? They write - A threat has been detected and you need to immediately install the latest security update, to do this, send an SMS. But you told me not to send any SMS in such cases, so I decided to call you.” An hour later I was at my friend’s and upon closer inspection he had on his computer what I expected. When we tried to log into the VKontakte website, the following message awaited us - More than 10 unsuccessful attempts were made to your page within 24 hours authorization attempts (you or someone else entered the wrong password 12 times)…

The official website ru.opera.com was also unavailable

http://otvet.mail.ru/ is unavailable and the message is: You are trying to log in from an unusual location. If you are trying to log in from your usual location, your provider may have changed your IP address...

www.youtube.com this is some bullshit

And even the microsoft.com/ru page was replaced by a virus with the following work: Your copy of Internet Explorer has detected attempts to make changes to its operation...

When I tried to log into Odnoklassniki, the following window appeared: Anomalous activity has been recorded from your IP.

Why don't websites open?

Now friends, the most interesting thing, let’s take for example from all the above - the site www.odnoklassniki.ru, then I advise you to enter the command on the command line:

Ping www.odnoklassniki.ru ping is a utility computer program designed to test connections on TCP/IP networks. The ping program is one of the simplest and most reliable diagnostic tools in TCP/IP networks and is included in the delivery of all modern network operating systems, and I want to say that I use it very often. The ping command can check the availability of the website www.odnoklassniki.ru on your computer on the Internet. In simple words, the ping program sends a request to the Odnoklassniki website and immediately records the incoming response; you can compare this program with echo. It is a known fact, friends, that during the Second World War the word “ping” meant a directed acoustic signal from anti-submarine sonars. And what we see is that the waiting interval for the request has been exceeded (100% loss). That is, the real website www.odnoklassniki.ru turns out to be NOT accessible to us.

The most attentive readers may notice an interesting oddity: the Odnoklassniki website turns out to be inaccessible to us, but we get there and a warning appears before us - Anomalous activity has been recorded from your IP. So who is asking to send us money via SMS, to be honest, this doesn’t look like our classmates at all and we continue our investigation further.

And now we will do it differently and enter another command Ping 217.20.147.94, the designation in numbers 217.20.147.94 is nothing more than the IP address of classmates and here you go, the site classmates pings and a response comes from it, packets are exchanged (0% losses ).

All this tells us that the Odnoklassniki website is still accessible to us, but a malicious process is running in the system, which prohibits us from going to the Odnoklassniki domain name - www.odnoklassniki.ru and redirects us instead of Odnoklassniki to another phishing (spoofing) site, with the appearance of classmates and a warning - Anomalous activity has been recorded from your IP, and so on.

From this it follows, friends, that if you cannot enter the Odnoklassniki website, then try entering in the address bar of your browser, instead of www.odnoklassniki.ru, one of their IP addresses 217.20.147.94 and very often you will be able to get to the site, of course here a lot depends on the complexity of writing the malware. In especially severe cases of infection, we will not be able to log into Odnoklassniki by entering the IP address of Odnoklassniki 217.20.147.94 into the address bar of the browser. More information for you, such phishing sites usually do not exist for a long time and sooner or later they are closed, but since it is a virus is still online for a long time, instead of your classmates you may get a blank white window or “Web page is not available” or “Server not found”. And also note to you, if you have problems accessing certain sites, be sure to check the registry key where the routing tables are located

There shouldn't be anything in it at all.

How to redirect to a phishing site

Most often, friends, redirection to a virus site occurs using a modified hosts file, and we will begin our investigation with it, with a small and important hosts file, and then in the course of the article we will consider other reasons for the inaccessibility of some sites. Where to look for the hosts file and what to do if the contents of the hosts file do not match the original. Either you have two hosts files, or there is no hosts file at all.

As we all know, the hosts file is located at C:\Windows\System32\drivers\etc and has the “hidden” attribute. You need a hosts file to speed up your work on the Internet by bypassing the DNS server. How does he do it? And it’s very simple - by matching their IP addresses to domain names. Now you will understand everything.

What is a DNS server or DNS service? In simple words, all sites are located on the Internet on certain servers and have numbers instead of names. The letter designations of sites were invented for the convenience of users (that is, you and me), for example, the site www.odnoklassniki.ru has an IP address of 217.20.147.94. Try typing 217.20.147.94 in the address bar of the site and you will be taken to the Odnoklassniki website.

So, if you and I enter the name of the site www.odnoklassniki.ru in the address bar of any browser, the DNS service will immediately translate the literal value of the site into the numbers 217.20.147.94, then we will get to the Odnoklassniki site.

Now attention. If we write in the hosts file, before the name of the site www.odnoklassniki.ru, this information 217.20.147.94, that is, in other words, we compare the IP address 217.20.147.94 to the site www.odnoklassniki.ru it will look like this:

we will get to the Odnoklassniki website a little faster than usual, bypassing the DNS service. Why? Because all browsers know that a request to the hosts file has priority over access to DNS servers, that is, before going online, any browser looks at the information in the hosts file and information such as 217.20.147.94 odnoklassniki.ru indicates that the IP The address of the Odnoklassniki website is 217.20.147.94. After this, the browser directly, bypassing the DNS service, opens the Odnoklassniki website. Now, I think it has become clear to you why the hosts file is a real boon for a virus writer, and of course you understand that if you write in the hosts file, for example, 94.100.191.203 www.odnoklassniki.ru, then when you type www.odnoklassniki.ru in the address bar of any browser you will NOT get to the Odnoklassniki website, but you will get to a completely different place - to the mail.ru mail service. Why? Yes, because the IP address 94.100.191.203 is the address of the mail.ru mail service and the hosts file contains a mapping of the IP address 94.100.191.203 to the domain name www.odnoklassniki.ru.

And here, friends, is a living example of how virus programs use the hosts file. This hosts file was on the infected computer, pay attention to its contents. If the same file is on your system, then instead of the sites “VKontakte”, odnoklassniki.ru, mail.ru, Dr.Web and Kaspersky, you will be taken to a site with IP address 83.149.127.0 (a no longer functioning virus site).

Friends, recently virus writers have come up with one trick: if you, for example, open the hosts file in notepad, then at first glance nothing suspicious will seem to you, the contents of the hosts file will be standard, but you should scroll the scroll arrow to the end, to the very end of the hosts file, then there you can find, for example, such malicious entries; of course, they need to be deleted.

After some time, you will need to check the hosts file again; if malicious entries are made again, it means you have a virus on your computer. How to find it is written later in the article.

How to find and fix the hosts file

The hosts file is always located at C:\Windows\system32\drivers\etc\, but sometimes users do not find it there, this happens for several reasons. The fastest way to get to the etc folder is Start - enter C:\Windows\System32\drivers\etc in the search field and press Enter on the keyboard, we get to the etc folder.

The hosts file may be hidden; to see it, you need to enable the display of hidden folders and files in Windows, be sure to do this. Computer->Organize->Folder and Search Options->View, uncheck Hide protected system files, uncheck Hide extensions for registered file types, then check Show hidden files and folders and drives. Apply and OK.

Now hidden files and folders will be displayed, including the hosts file.

Don't be surprised if you end up with two hosts files after being infected with a virus. It happens that a hosts file with the extension .txt is visible and if you open it, its contents will correspond to the original contents of the hosts file, but this is not a real hosts file, so the hosts file should not have any extension, a real hosts file modified by a virus , may have a hidden attribute and you will not see it until you enable the display of hidden folders and files in Windows.

Several times I came across two hosts files in the etc folder, everything as expected, without an extension, and absolutely identical, I agree that this is impossible, but the answer turned out to be simple, the virus replaced the letter “o” in the real hosts file with the letter “o” in Cyrillic and it became inoperative, then the virus created its own malicious hosts file, which was used by the system, in the end there were, as it were, two of them. What to do in this case is written in detail below.

If after all the above steps you also do not find the hosts file, then the corresponding key in the registry, which is responsible for the location of the hosts file in the operating system, has been changed, go to the registry and look at the key: HKEY_LOCAL_MACHINE\SYSTEM\ CurrentControlSet\services\Tcpip\Parameters\DataBasePath, should have the same value as you see in the screenshot, %SystemRoot%\System32\drivers\etc\, that is, C:\windows\system32\drivers\etc\, if the key is changed and a different folder is specified in it, not etc, then the system will use the hosts file located in this other folder. We return the necessary parameters.

I want to tell you, friends, this happens very rarely and there is no need to edit the registry unless there is a serious need, but if you are going to do this, be sure to create a backup copy of the registry or operating system.

The file may have been deleted by your antivirus program when a virus tried to change its contents. I've encountered this many times. Please note that the ESET NOD32 antivirus program was quarantined and the hosts file was deleted from the operating system upon infection.

But no matter what you have, you can return the hosts file to its original content, either manually or automatically. If you chose to fix the hosts file automatically (recommended), then you need to follow the link to the official Microsoft website, select the Microsoft Fix it 50267 utility and click fix the problem and that’s it, then you will be asked to reboot and after rebooting the Windows operating system will use the already corrected hosts file.

To fix the hosts file manually, I have given you the original contents of the hosts file in the Windows 7 operating system. Completely copy the contents of the original hosts file and replace the contents of your hosts file with it.

# Copyright (c) 1993-2006 Microsoft Corp.## This is a sample HOSTS file used by Microsoft TCP/IP for Windows.## This file contains the mappings of IP addresses to host names. Each# entry should be kept on an individual line. The IP address should# be placed in the first column followed by the corresponding host name.# The IP address and the host name should be separated by at least one# space.## Additionally, comments (such as these) may be inserted on individual# lines or following the machine name denoted by a "#" symbol.## For example:## 102.54.94.97 rhino.acme.com # source server# 38.25.63.10 x.acme.com # x client host

# localhost name resolution is handle within DNS itself.

# 127.0.0.1 localhost# ::1 localhost

I can't edit the hosts file

Friends, if you are unable to edit the hosts file, then you need to pay attention to the following... Run the notepad program as an administrator.

Also remove the Read Only attribute from the hosts file.

Your antivirus program may well prohibit you from editing the hosts file even automatically; disable it for a while or boot into safe mode. Important note: In the end, you can simply replace the "etc" folder on a computer that does not have access to some sites. You can take the normal "etc" folder from your friends if they have the same version of the operating system installed as you and have no problems accessing sites. Copy their “etc” folder to a flash drive and replace yours with it. The etc folder weighs 36 kilobytes, your friends can easily send it to you via Skype.

How to find a virus

After normalizing the hosts file, we will need to find the malware on our computer. To speed up the process of neutralizing the virus, you can download the very useful free utility Dr.Web CureIt, which has helped me out more than once. As I noted at the beginning of the article, we will remove a real virus that is located on my friend’s computer and prevents him from logging into the a dozen sites. To detect a virus, we first need to examine all programs that are loaded along with the operating system, that is, examine startup. The first rule of a virus program is to get into startup, otherwise it will simply lie on the hard drive as a simple file and of course we will need a good tool for this. You don’t need anything complicated and we will choose the effective and simple AnVir Task Manager program that is already familiar to us, but you must master it professionally, 100%. Download it from the official website http://www.anvir.net/ and install it. Before entering into battle, we can take a young fighter’s course - watch a good training video.

When installing the program, DO NOT select the full installation, but select Settings and uncheck everything that you do not need, leave only the option Run AnVir Task Manager (recommended)

and Add an icon to the desktop. The CPU load icon can be very useful. And of course, check the box Start AnVir Task Manager when Windows boots.

We launch the AnVir Task Manager program and study startup. When you open the AnVir Task Manager program, do not expect that in its window you will see an application or process called “I am a virus.” Here we need to use our head. First of all, you need to pay attention to the fact that the AnVir Task Manager program provides fairly comprehensive information on all files and processes, there is even such an item as – Risk level, the program kind of tells us which files we need to pay attention to.

First of all, we look at completely unfamiliar files and processes that are in startup, for example with strange names.

But sometimes, friends, a virus will disguise itself as a completely useful and necessary program, as in our case. To better understand the material, let's find a virus together on my friend's computer.

We look at startup and see that the very first application in autoload is adobe_flash_player.exe, that is, in other words, if we think logically, then this file claims to belong to the development company Adobe Systems, a well-known manufacturer of such products as: Adobe Acrobat, Adobe Photoshop, Adobe Flash Player and so on. We right-click on it and check the Detailed information box, and detailed information about our file immediately opens. According to AnVir Task Manager's preliminary forecast, our file is dangerous.

In our case, we need to think that the file adobe_flash_player.exe belongs to the Adobe Flash Player product and should be located in the folder belonging to the Adobe Flash Player program

C:\Windows\System32\Macromed\Flash for Windows 7-32bit operating system.

Or C:\Windows\SysWOW64\Macromed\Flash\for the Windows 7-64bit operating system. But our strange file adobe_flash_player.exe is located, oddly enough, in a completely different folder. Right-click on the file name and select from the menu – Go –> Show file in Explorer, the Startup folder is called.

This folder contains shortcuts to programs that the user needs to launch along with the operating system. Every virus just dreams of getting into this folder and launching its malicious process the next time the system boots. We ourselves did not place this file there, and it is even more unclear why we actually need it at all. In Windows XP, the Startup folder is located at C:\Documents and Settings\Username\Start Menu\Programs\Startup. In Windows 7, the Startup folder is located at C:\Users\ALEX\AppData\Roaming\Microsoft\Windows\Start Menu\ Programs

Of course, this fact should make you suspicious. In addition, if in the AnVir Task Manager program window we select the All entries item, then we will see the file of the real Adobe Flash Player program scheduler and it is called Adobe Flash Player Updater and, as expected, has its own executable file. Click Go -> Show file in explorer

FlashPlayerUpdateService.exe, which is located in the folder C:\Windows\System32\Macromed\Flash - for 32-bit operating systems Or C:\Windows\SysWOW64\Macromed\Flash\ - for 64-bit operating systems

That is, without talking, the adobe_flash_player.exe file is a virus and needs to be deleted. Using the AnVir Task Manager program, you can scan any file for viruses. Select the service, right-click on it on our file adobe_flash_player.exe and click on the menu item – Check on the website www.virustotal.com

The answer is more than eloquent, of course it is a virus.

Interestingly, we were able to remove the virus file only in safe mode. After removing the virus, our computer seemed to come to life, the noticeable slowdowns that had existed before stopped, but unfortunately we were not able to log into the necessary sites. Let's look for the problem further. Let's look at autoload further, there is nothing unusual, other programs are found all the time, and even more so they are turned off from autoload: WinAMP agent, Praetorian - Yandex Defender, Skype, Download Master. However, there are three more processes in startup that belong to the Panasonic device, most likely this is a printer. Panasonic Device Manager and Panasonic Device Monitor, as well as Panasonic MFS PC FAX.

I ask a friend if he has a printer or any device from Panasonic, I hear an affirmative answer that he has a Panasonic printer, but lately strange things have been happening to it, it is almost impossible to print anything on it and some errors appear from time to time. I temporarily turn off all three processes from startup. Next, I think I’ll look at the Startup section in detail - All entries, here the information about startup is more complete and I need to tell an inexperienced user to disable processes here with caution and knowledge of the matter. There are also two processes belonging to the Panasonic printer, let's try to go directly to the processes tab. Right-click on Panasonic Local Printer Service and select Go to Process

and go to the AnVir Task Manager program window called Processes. In this window we see two processes belonging to the Panasonic printer.

Panasonic Local Printer Service - executable file LMSRVNT.EXE, located at

C:\Program Files\Panasonic\LocalCom

Panasonic Trap Monitor service - executable file Trapmnnt.exe, located at C:\Program Files\Panasonic\TrapMonitor I check both processes in turn on the website www.virustotal.com and the second process turns out to be malicious, and the Trapmnnt.exe file turns out to be infected with a virus.

I finish both processes, right-click on the name of the process we need and select from the menu – End process. Then I calmly go to all the sites that were previously inaccessible; one can say that I did not expect such success. The computer didn't even have to be rebooted. According to the website www.virustotal.com, the Trapmnnt.exe file is infected with the Win32.Sality virus according to Avast. This virus infects files with the EXE extension, modifying their content and accordingly changing their size. If you don't trust the website www.virustotal.com, then you can dig deeper.

There is such a very good site filecheck.ru, with information on Windows files. On this site you can find out comprehensive information about almost any file, that is, what program it belongs to, what folder it should be in, what size it should be, and so on.

So, the information on this file was as follows: Trapmnnt.exe is located in the subfolders "C:\Program Files". The file size for Windows 7/Vista/XP is 69,632 bytes. Firstly, the file size did not match, in my case it was 72,856 bytes compared to the original 69,632.

Also, the checksums (hash sums) of the original Trapmnnt.exe file did not match my file.

Checksum is a certain value used to verify data integrity and can be used to detect computer viruses. http://ru.wikipedia.org/wiki/Checksum Friends, the free HashTab program will help you determine the checksum of a file. You can download it on the official website of the program. After installation, it adds an additional tab “File hashes” to the “Properties” menu of the file. The program automatically measures the checksum for the following algorithms: *CRC32*MD5*SHA-1

In short, my file Trapmnnt.exe was not included in the list of normal files, I did not delete it yet and decided, out of curiosity, to check the entire system drive (C:) with an anti-virus utility with the latest anti-virus databases - Dr.Web CureIt. Literally two or three minutes later, the Dr.Web CureIt spider found our infected Trapmnnt.exe file and deleted it. No more viruses were found on the computer.

Since our Trapmnnt.exe file with the virus was deleted, I decided to completely remove the software and Panasonic printer drivers using the Uninstall or Change a Program utility, after which I completely deleted the Panasonic folder from C:\Program Files\ and then reinstalled the drivers on our printer Panasonic, after installation a new folder appeared: C:\Program Files\Panasonic and our Panasonic printer began to print normally.

Many may say - Well, why were there all these dances with a tambourine, when from the very beginning it was possible to use the Dr.Web CureIt anti-virus utility and it would have solved all the problems. I partially agree with you, because sometimes it happens that Dr.Web CureIt refuses to help.

Friends, one more very important note. Often, after removing the virus, you will still have problems accessing certain sites, since the virus changes the DNS settings in the properties of the network protocol, namely the DNS address. Read on to find out how to fix everything.

Where else can there be viruses on a computer with similar problems?

If you are having problems accessing certain sites, be sure to go to Local Area Connection - Properties - Start - Control Panel - Network and Internet - Network and Sharing Center - Change adapter settings, then go to Properties of Local Area Connection

Internet Protocol Version 4 (TCP/IPv4) and Properties

If your Internet provider assigns IP addresses to all computers on the network automatically, then you should have the following set here:

Obtain an IP address automatically and Obtain a DNS server address automatically.

But sometimes a virus registers its Preferred DNS server here and it looks like this, for example:

in this case, you need to delete the changes made by the virus and check the Obtain DNS server address automatically option and click OK.

In another case, many Internet providers assign certain IP addresses, Subnet Mask and Default Gateway, Preferred DNS Server, Alternate DNS Server to all computers on the network.

The last time in my practice was a case when a virus changed my friend’s Preferred DNS server and for several days he could not log into the sites VKontakte and Odnoklassniki

Therefore, if you have problems accessing certain sites, you need to check all the addresses; they are usually specified in the agreement with your provider. If the contract is lost and you don’t remember the addresses, then you need to call the provider and clarify all the addresses. How to use an Internet service that provides public DNS servers or what OpenDNS is. Friends, if your sites do not open, there are two more ways to help you, but to use them, I will once again remind you what a DNS server or DNS service is? DNS (Domain Name System) was invented in 1983 by Paul Mockapetris. Without exception, all sites on the Internet are located on certain servers and have numbers instead of names. The letter designations of sites were invented for the convenience of you and me, ordinary users, for example, the site www.odnoklassniki.ru has an IP address of 217.20.147.94. If you type 217.20.147.94 in the address bar of the site, you will be taken to the Odnoklassniki site.

If we enter the name www.odnoklassniki.ru in the address bar of the browser, the DNS service constantly running on the Internet will immediately translate the literal value of the site into numbers 217.20.147.94, then we will get to the Odnoklassniki website. So, friends, in 2006, scientist David Ulevich launched a kind of alternative to the already existing DNS service; the created project was called OpenDNS. I foresee the question - why do we need this OpenDNS. If you have problems accessing certain sites due to various reasons (viruses, browser errors, and so on), then try using this very service, in some cases it will help, it has been verified, for this you just need to open the Properties of Internet Protocol version 4 ( TCP/IPv4), check the Use the following DNS server addresses and enter the Preferred DNS server 208.67.222.222 and the Alternate DNS server 208.67.220.220.

I advise you to create a system restore point before experimenting. If you are using a router, then you need to enter all this in the router settings. This method will not work if your provider has assigned its preferred and alternative DNS addresses to you in the Properties of Internet Protocol version 4 (TCP/IPv4), which is quite rare. By the way, the OpenDNS service has a large number of additional features, mainly protection from malicious sites and inappropriate content for children; if you wish, you can specify those sites to which access from your computer will be prohibited.

How do I clear the contents of a client's DNS name mapping cache and why should I do it?

The DNS client service has its own cache, which can accumulate unnecessary records and needs to be cleared from time to time. This should also help with certain difficulties accessing some sites. To clear the DNS cache, you need to run a command prompt as an administrator and enter ipconfig /flushdns. That's it, the DNS cache has been cleared successfully.

If all of the above does not help you and you were unable to find the virus, then there is more information for you. In the AnVir Task Manager program there is a parameter All entries, if you open it, a lot of interesting things will open, for example, let’s pay attention to this entry - Mario Forever Toolbar.

I consider such Toolbars absolutely unnecessary, especially in startup. First of all, disable Mario Forever Toolbar in Internet Explorer add-ons.

Then disable this add-in in the AnVir Task Manager program itself and delete all entries in the registry. You can completely remove Toolbar using the built-in Windows utility Uninstall or change a program. If this does not work, then delete the entire folder, it is located at C:\Program Files\Mario Forever and clean the registry. You can also say that you need to check your temporary file folders. In Windows 7 folder.

C:\USERS\username\AppData\Local\Temp, very often there are virus files there, for example, pay attention to the screenshot made on another infected computer, in this folder there is a file TUlug.exe and it is registered in startup. www.virustotal.com did not pass the test and without a doubt it needs to be deleted.

Trojan.Mayachok.1

There is also talk on the Internet about the Trojan.Mayachok.1 virus, which is nothing more than a .dll - a dynamic link library. This virus is directly related to our problem, since it is a malicious program that steals money from the accounts of mobile operator clients by asking users to respond to an incoming SMS message.

Friends, an article is being prepared about a new modification of this virus, Trojan.MayachokMEM.4. Trojan.MayachokMEM.4 differs from Trojan.Mayachok.1 and produces its destructive actions in the system a little differently, but I want to tell you in advance that the Dr.Web CureIt anti-virus utility copes with it perfectly, how to download and how to use the Dr.Web anti-virus utility CureIt, you can read in our article “How to check your computer for viruses”, link at the beginning of this article

In case of infection with the Trojan.Mayachok.1 virus, to the registry branch. For users of x32 bit systems: HKLM\SOFTWARE\Microsoft\Windows NT\Current Version\Windows\Appinit_DllsIn the \Appinit_Dlls parameter, a value is added with approximately the following content (the name of the virus is randomly generated), for example, “C:\windows\system32\fxqxtph. dll" All this needs to be deleted, then the virus file itself must be deleted at the address corresponding to the entry in the registry C:\windows\system32\fxqxtph.dll. You also need to remove files with the .tmp extension created simultaneously with fxqxtph.dll from the directories

C:\windows\system32 and C:\windows\SYSWOW64 (on 64-bit systems).

For users of x64 bit systems: The virus will be located in the folder C:\windows\SYSWOW64\fxqxtph.dll"I would like to warn you that before you delete any values ​​from the AppInit_DLLs parameter, look for information in search engines, maybe these values ​​will add the necessary values programs for you.

The virus has changed the properties of the browser shortcut

Pay attention to the shortcut of your browser, as the virus often adds its own information to it, which resets the browser’s home page, as a result of which the browser opens a malicious site when launched. To check this, you need to right-click on the browser shortcut and select “Properties”.

On the “Shortcut” tab, in the “Object” item, look at the parameters added by the virus with the address of the malicious site. For example, if the browser shortcut is not modified by a virus, then ideally it should be “C:\Program Files (x86)\Opera\launcher.exe” or “C:\Program Files (x86)\Opera”

After infection with the virus it will look something like this: "C:\Program Files (x86)\Opera\launcher.exe"http://home.webalta.ru/

and the malicious entry http://home.webalta.ru/ will need to be removed from the shortcut properties.

The easiest way to show pictures to friends is to post them on the Internet. The easiest way to post photos online is to use iPhoto.

Hello friends! Do you want to know which antivirus is the best? Today we will look at the top 10 best antiviruses of 2017 and tell you in detail about each of them.

Hello friends, readers of our site. Today I would like to review the browsers of 2017 for you. Every day, many new programs appear in the world that satisfy our needs in all areas of digital life.

Every year the number of mobile devices in the world is constantly increasing. Users increasingly prefer laptops, tablets and smartphones.

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Readers often ask me why the browser on the computer does not work. This is indeed a very serious problem, since a computer without the Internet in 95% of cases is a useless thing that takes up space on the table. To easily access the network, let’s figure out what’s the point. The solution to this problem applies to all browsers: Internet Explorer, Mozilla Firefox, Opera or Google Chrome.

But before we begin, it should be noted that the question itself is posed a little incorrectly. You must clearly understand the problem in order to begin solving it. For example, browsers on the computer do not work or only one browser. If we consider the “crash” of all browsers at once, then most likely the problem is in some application that does not allow them to load normally.

The most popular problem is viruses; they are the ones that usually cause harm to the system, and the above information should not be excluded. Viruses can block not only browsers, but also other software products that in any way, even indirectly, allow you to access the Internet or a simple text editor. To remove viruses, you can use the standard antivirus that is installed on your computer. Before scanning, you need to update your anti-virus databases to be sure of the scan.

Checking the correctness of the hosts file

Usually when the browser is not working, viruses write themselves in the filehosts. To view it, we will perform the following operations. First, go to: C:\WINDOWS\system32\drivers\etc. Find in the last folder etc file hosts and open it using notepad (right-click on it, select “Open” and select the Notepad program by double-clicking).

We delete absolutely all lines that should not be there. So that you can understand what an untouched file should look like, I’ll show you a screenshot of mine.

Save the changes and restart the computer! If the system does not allow you to save changes, then you need to open Notepad as an administrator. To do this, go to “Start” - “Accessories” - and then right-click on Notepad. Select "Run as administrator" from the drop-down menu. Then follow the instructions described above.

If you have little experience in these matters, then use a special program to restore the hosts file. " ".

Viruses are a constant problem

To check your computer for viruses, it is best for you to download a special utility with up-to-date databases, but if you have an antivirus installed on your computer, I will still ask you to download and scan your computer with one of the utilities: or.

The very first question that will arise is how can I download a program or access any website if my browser does not work?

Here are several options on how to download it in this situation:

• Use a laptop or any other work computer that you have access to (work, friends, etc.), you can also use a tablet or smartphone if there is Wi-Fi.
• The worst situation is that there is only one computer, there are no browsers. There can only be one way out here - you have the Download Master program pre-installed, which allows you to download files from the Internet without using browsers. Or you can take it from another computer. In it you need to go to Top Downloads and find Dr. Web Cureit, he is always in the first positions.
• If you have any browser of the Portable version, then try accessing the Internet with this version, it is possible that the result will be positive.

Now that the antivirus is installed, let's proceed to the next step: launch it, select search throughout the entire computer, scan the entire computer, and not just drive C, as users like to do. When the utility finds viruses, you must ruthlessly remove them, but before that, go through the files where it found malicious code. Sometimes, there is a possibility of infection of work files, for example, text files or photos from vacation, in this case you need to try to cure them, if nothing works, then delete them.

Another answer to the question why browsers do not work lies in the Windows registry. Type regedit in the search bar of the Start menu. Go to the path: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows\ and find the AppInit_DLLs parameter on the right.

Now you need to open this parameter and specify the value 0, then click “OK”. Now right-click on it and select “Delete”. After this, restart your computer.

The problem should be resolved. If not, then reinstalling the operating system will help - this option for many will be a way out of situations, but we must not forget that if there is a problem, then there must be a solution.

Reinstallation

If there is a problem with any program, then I advise you to try updating it through the “Tools” or “Help” menu. If the update is interrupted, then go to the official website and download a new version of the browser you are using.

Also, from my experience, I can say that there is a possibility of glitches in new versions of programs, and therefore if an updated version is currently installed, then try installing an older one. If this helps you, then you will have to temporarily “sit” on the previous version, and after a few updates you will enjoy the new one.

The Internet simplifies communication between people at a distance and makes it easier to obtain important information. But what a disappointment the user experiences when, at the most inopportune moment on the computer, browsers stop opening sites. The sure-fire way out of an unpleasant situation is to contact a specialized service company that will professionally sort out and eliminate such problems. But, in order not to waste time, you can try to restore the network connection yourself using the following tips.

Checking by exception

When pages in the browser do not open, first analyze the likelihood of hardware problems. If third-party devices using Wi-Fi function unhindered, then it is clear that the router is working, there are no problems with the Wi-Fi service, and the provider is also not to blame. Check the functionality of other programs. If the transfer via Skype is carried out, ICQ exchanges data, Steam is loaded, then the Internet is working. In this case, you should begin to identify and eliminate software problems in your computer.

Clearing the DNS cache

One of the reasons why pages do not open in the browser may lie in a malfunction of the DNS server, with the help of which the domain name system identifies the correspondence between a domain name and an IP address according to a certain protocol. Perhaps clearing a full cache will help restore access to the network. To do this, by simultaneously pressing the Win and R buttons on the device keyboard, call the command line. In the window that appears, type cmd. Next, enter ipconfig /flushdns. Wait until the command is processed and restart your computer. If your Internet connection has not been restored, the next step is to check and configure your DNS settings.

Changing settings

Having launched the main menu of the system, sequentially open the “Control Panel”, “Network and Sharing Management” tabs and find the function related to adapter data. The right mouse button will help you enter the local network connection section. In properties, select Internet Protocol Version 4 (TCP/IPv4). Next, in the tab indicating DNS server addresses, enter the numeric character set 8.8.8.8. as a priority address. Click OK. This will set you up to receive requests from the popular Google browser. Perhaps this will be the end of your computer problems. But if there is still no response when loading the page, move on to the next method of restoring communication with the network.

Adjusting proxy server settings

A proxy server is an application that mediates between a trusted network and other services that receive traffic. The following instructions apply to restoring the functionality of all browsers. Using the “Start” key, select “Internet Options” from the list presented in the control panel. Going to the “Connections” tab, set the “Network Settings” function. Here you can check your proxy server details. If you are in doubt about the specified parameters, and it is not possible to find the address of another proxy server, then simply clear the “Address” and “Port” fields and check the “Automatic detection of parameters” box. After confirming the action by clicking on the “Ok” sign and rebooting the device, you will see that the browser pages open.

It is not so uncommon for malware to invade the domain name database of the hosts file, make its own incorrect changes and block access to sites. You can edit the file using any text editor.

In Windows, you can adjust the contents of the hosts file using the built-in Notepad program, running it as an administrator. It is located on the C drive of the Windows operating system. To get to it, you can use quick access by simultaneously pressing the “Windows” and “R” buttons on your computer keyboard. In the “Open” line of the window that appears, enter the path C:\Windows\System32\drivers\etc or the command WinDir\System32\Drivers\Etc and click on the “OK” sign. A folder will open with a standard content file attached. It is necessary to pay attention to the entries below the line with the characters 127.0.0.1 localhost, consisting of a set of numbers and names of unauthorized sites. Perhaps they are the ones blocking access to the requested resources. To prevent third party interference with your browser, delete these dubious entries.

Antivirus treatment

If, after trying these options, complete restoration of the Internet does not occur, and actions with shared network resources take a very long time, you should use an antivirus to eliminate the malicious program that damages the communication line. There are a large number of utilities that neutralize viruses. The most popular are Eset Nod 32, Norton Antivirus, avast, Kaspersky. They are protective complexes and can be downloaded from official websites.

In any case, if you are unable to connect to the Internet on your own and the sites do not open in the browser, you can contact the specialized Recomp support service. You will be provided with detailed instructions on how to use other methods of setting up the Internet or receive direct assistance from a specialist.

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